Home >> Business >> Electronics and Electrical >> Electromechanical >> Relays and Solenoids >> Engineering Parc Systems Provide protective relay testing and comissioning, circuit breaker testing, and training courses on protective relays. VB-Controls for ssr or scr contactors VB-Controls designs ssr, scr, and igbt based contactors for power control. Using thyristors, mosfets, or silicon controller rectifiers, VB-Controls manufactures zero crossing or phase angle controllers. Business: Electronics and Electrical: Engineering
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